Power electronic converters are used for integrating renewable energy sources such as wind and photovoltaic into the grid. This integration gives rise to many challenges in power systems, especially regarding quality. Indeed, integrated systems generate a non-linear current full of harmonics, which degrades Active filters usually compensate these harmonics at point common coupling. In control a...

The optimal reactive-power compensation problem solving consists of finding the optimal combinations of the capacitors and their locations in a network in a way that technical requirements are satisfied and maximum economical effects are achieved. An approach to the optimal reactive-power compensation in distribution networks based on simulated annealing method and deterministic initialization ...

Energy-gap-dependent vibrational-energy transfers among the nitrile stretches of KSCN/KS(13)CN/KS(13)C(15)N in D2O, DMF, and formamide liquid solutions at room temperature were measured by the vibrational-energy-exchange method. The energy transfers are slower with a larger energy donor/acceptor gap, independent of the calculated instantaneous normal mode ("phonons" in liquids) densities or the...

We develop a theory for valuing non-diversifiable mortality risk in an incomplete market. We do this by assuming that the company issuing a mortality-contingent claim requires compensation for this risk in the form of a pre-specified instantaneous Sharpe ratio. We apply our method to value life annuities. One result of our paper is that the value of the life annuity is identical to the upper go...

The ignition of a gaseous reactive mixture subject to a localized energy source is analysed using large activation energy asymptotics. The energy released by the source results in a thermal non-uniformity in a small region of the gas. We distinguish two different regimes, non-diffusive and diffusive, depending on the dominant cooling mechanism during the ignition stage: expansion effects or hea...

With the development of the rural power grids increasing gradually, there are higher requirements needed for its operation in reliability and economy. Reactive compensation using shunt capacitor at both ends of the load, reducing current of lines, and improves the power factor of system. The objective is to reduce losses of line, and improves the quality of voltage and the utilization of electr...

A major issue in evaluating speech enhancement and hearing compensation algorithms is to come up with a suitable metric that predicts intelligibility as judged by a human listener. Previous methods such as the widely used Speech Transmission Index (STI) fail to account for masking effects that arise from the highly nonlinear cochlear transfer function. We therefore propose a Neural Articulation...

Due to large amount of non-linear power electronic equipment’s impact and fluctuating loads , problems of power quality have become more and more serious with each passing day. Active power filtering has gained much more importance in the power quality arena as it gives the best solution for all power quality issues. Shunt active filtering is effective and the performance of such units largely ...